8I

8I or 8-I can refer to:

Transportation

 * MyAir (former IATA code: 8I), a 2004–2009 Italian low-cost airline
 * Itapemirim Transportes Aéreos (2020–2022) (former IATA code: 8I), a former Brazilian airline
 * 747-8i, a model of Boeing 747

Computing

 * PowerXCell 8i, IBM model of Cell microprocessor
 * ISO-8859-8-I, an IANA charset name

Other uses

 * 8i (virtual reality), a New Zealand-based virtual reality company